Researchers design nanowire-based beads that release drugs in the gut, improving absorption and reducing degradation. The technology may also be used for delivering drugs to mucosal tissues like the nose, lungs, or vagina.
A University of Pennsylvania team has developed a method to transform semiconducting nanowires into various nanoscale materials using ion exchange reactions. This process enables the creation of reconfigurable materials and circuits with precise control over their chemical composition, structure, and morphology.
Scientists at Lund University successfully injected nanowires into rat brains, revealing that the brain's 'clean-up' cells (microglia) take care of the wires. After 12 weeks, only minor differences were observed between test and control groups.
Researchers at the University of Texas at Austin have conducted a basic chemistry experiment in a world's smallest test tube, measuring thousandth of human hair diameter. The nano-scale test tube was heated and observed to melt gold at its tip, demonstrating well-known phenomena like melting, capillarity and diffusion at nanoscale.
A Yale team has discovered a repulsive light force that can be used to control components on silicon microchips, paving the way for faster and more efficient nanodevices. The researchers found that by manipulating out-of-phase light beams, they could create a controlled repulsive force with tunable intensity.
Researchers demonstrate graphene's potential as an alternative to copper for interconnects in integrated circuits, with improved conductivity and reduced resistance. Graphene's performance is comparable to or surpasses that of copper at nanoscale sizes.
A new device has been developed that can detect viruses and biological materials more quickly and cheaply than existing methods. The device uses synthetic antibody mimic proteins attached to nanowires to create a sharp measurement of current, allowing for rapid detection in under 10 minutes.
Researchers at Harvard University have demonstrated the activation energy of impurities in semiconductor nanowires is affected by surrounding dielectric, which can be modified to optimize device performance. The study confirms the dielectric confinement effect, a key phenomenon in doping and conduction in nanostructures.
Researchers at the University of Illinois have developed a new technique to create self-aligned and defect-free nanowire channels using gallium arsenide. This breakthrough could lead to the creation of higher performance transistors for next-generation integrated circuit applications.
Researchers at Lehigh University have developed a new cooling method for carbon nanotube electronics by utilizing nonconventional radiation in a near-field zone, dissipating heat into the substrate. The method increases effective thermal conductance over the interface between nanotubes and polar substrates.
Physicists at the University of Leeds and IBM Research have made advances in racetrack memory, a new kind of computer memory that could replace hard disks. The technology is estimated to be 100 times cheaper per bit than flash memory and promises faster speeds.
Researchers at MIT have successfully engineered viruses to build a cathode material, leading to the creation of a highly powerful and conductive lithium-ion battery. The virus-produced batteries demonstrate improved energy capacity and power performance compared to traditional rechargeable batteries.
By using atom probe tomography, researchers have provided an atomic-level view of the composition of a nanowire, allowing for precise measurement of dopant atoms and understanding of synthesis conditions. This breakthrough enables control over electronic properties of nanowire devices, paving the way for improved device performance.
Researchers at the University of Southern California have created a new type of supercapacitor that is both transparent and flexible, allowing for potential applications in 'e-paper' displays and conformable products. The device stores an energy density of 1.29 Watt-hour/kilogram, significantly higher than conventional capacitors.
Researchers at the University of Rochester have developed long, thin platinum nanowires that could improve the performance of fuel cells. The wires are designed to provide a larger surface area for catalysis, reducing the loss of platinum particles during fuel cell operation.
Researchers create handheld device to recognize and report on environmental or medical compounds using biologically tagged nanowires and integrated circuit chips. The method allows for accurate placement of nanowires with less than a micron accuracy, enabling simultaneous detection of different pathogens or diseases.
Researchers at NPL developed magnetic semiconductors with superior performance, showing potential for electronic devices. The technology could revolutionize computing and be realized in 10 years, sustaining Moore's Law.
Silicon nanowires show highly repeatable nucleation process, allowing for predictable growth and design of electronic systems. The research could enable the continuation of Moore's law by providing a new manufacturing method for nanowire-based electronics.
The new flexible charge pump generator can produce an oscillating output voltage of up to 45 millivolts, converting nearly seven percent of the mechanical energy applied into electricity. This advancement resolves key issues with previous generators, such as moisture infiltration and wear, enabling more robust designs.
Researchers at Boston University developed a nanoscale torsion resonator to measure miniscule amounts of twisting or torque in metallic nanowires. The device has applications in spintronics, fundamental physics, chemistry, and biology.
Researchers at Northwestern University resolved discrepancies in ZnO nanowire elasticity by performing experiments and computational studies. The findings reveal that the elastic stiffness of ZnO nanowires monotonically increases as their diameter decreases, with atomic level changes attributed to surface reconstruction.
Researchers at Yale University have created nanowire sensors that can detect specific antigens and identify diseases with high sensitivity and specificity. The system uses immune cell activation to generate a current in the nanowires, allowing it to detect as few as 200 activated cells.
The Penn State MRSEC will continue its research in four areas: nanoscale motors, nanowires, optical metamaterials, and multiferroics. The center aims to design new materials with unprecedented properties and functions.
A new electroplating process that joins many silicon nanowires to prepatterned electrodes in parallel has been chosen for the Nano 50 Award. This technique allows for lower-cost production of semiconducting nanowires used in electronic sensor arrays.
Scientists have created the world's first all-integrated sensor circuit based on nanowire arrays, combining light sensors and electronics made of different crystalline materials. The method can be used to reproduce numerous devices with high uniformity.
Researchers at MIT create a membrane that can absorb up to 20 times its weight in oil, and can be recycled for future use. The oil itself can also be recovered, making it an important tool in the cleanup of oil spills.
Researchers at UC San Diego have created experimental solar cells with nanowires that show promise as efficient thin-film solar cells of the future. The new design increases electron transport and reduces recombination, leading to a significant boost in efficiency.
Researchers create reproducible and controlled fabrication method for integrating nanowire photonic and electronic integrated circuits onto silicon, enabling standard manufacturing settings.
Researchers at the University of Illinois developed a low-temperature, catalyst-free method for growing copper nanowires, suitable for integration into electronic devices. The copper nanowires can serve as interconnects and electron emitters in field-emission displays, which could lead to longer-lasting displays.
Researchers at Purdue University have developed a proof-of-concept active-matrix display using transparent transistors and circuits. The display utilizes organic light-emitting diodes (OLEDS) with nanowires, which rival the brightness of conventional pixels in flat-panel television sets.
Researchers used advanced quantum-mechanical computer modeling to compare key characteristics of copper nanowires and carbon nanotube bundles. Carbon nanotubes boasted a much smaller electrical resistance, suggesting they would be better suited for interconnect applications.
Researchers have detected significant amounts of copper in zinc oxide nanowires, a discovery that could help understand and manipulate the nanowires' optical and electrical properties. The study found that the copper increases visible light output but decreases ultraviolet emission.
Researchers develop fiber-based nanogenerators that harness energy from physical movement, generating up to 80 milliwatts of power per square meter of fabric. The devices use piezoelectric and semiconducting properties of zinc oxide nanostructures to convert mechanical motion into electrical energy.
Stanford researchers have developed a new type of lithium-ion battery using silicon nanowires, which can store up to 10 times more electricity than traditional batteries. This breakthrough could make Li-ion batteries more attractive for electric cars and home energy storage.
Research on DNA structures and electronic properties aims to create ultra small computers. The study found that intrinsic guanine rich sequences of ?-DNA exhibited length-dependent conductivity, providing insights into electrical behavior and potential modification.
Researchers at NIST have developed a method to selectively grow nanowires on sapphire wafers, allowing for the creation of transistors and other circuit elements with high accuracy. This technique has the potential to enable industrial-scale production of nanowire-based devices.
Researchers at University of Illinois created nanowire that produces power through piezoelectric material, generating voltage when mechanically deformed. The breakthrough uses extremely sensitive and precise mechanical testing stage to accurately measure the nanowire's response to vibrations.
Researchers at the University of Pennsylvania have created a new form of computer memory using nanowires that can store data for 100,000 years and retrieve it up to 1,000 times faster than current technology. The device uses less power and space than existing memory technologies.
Researchers at University of Pennsylvania devise nanoscale system to observe how individual cells react to external forces. The study shows that cells respond to outside forces and demonstrate a remote response from the cell’s internal forces., The findings prove useful for understanding tissue growth, function, and disease.
Researchers have developed a nanowire coating on titanium that enhances muscle tissue adhesion for hip replacements and dental reconstructions. The material can also be easily sterilized using UV light or ethanol, making it suitable for hospital settings and food processing plants.
Researchers at Lawrence Berkeley National Laboratory developed a bio-friendly nano-sized light source capable of emitting coherent visible light across the visible spectrum. This innovation enables single cell endoscopy, integrated circuitry for nanophotonic technology, and advanced methods of cyber cryptography.
Researchers have developed transparent transistors and circuits using nanowires, promising applications in e-paper, flexible color screens, and smart cards. The breakthrough enables fully transparent and flexible displays with high performance levels.
Researchers have fabricated a novel memory device combining silicon nanowires with traditional SONOS technology, enabling more reliable data storage and easier integration into commercial applications. The device boasts simple read, write, and erase capabilities, high memory retention, and large on/off current ratio.
Researchers at NIST developed a batch fabrication technique to create nanowire LEDs emitting ultraviolet light, which is crucial for data storage and biological sensing devices. The new method yields reliable, stable devices with excellent thermal stability and operational stability.
Dayeh's work resolves debate on III-V compound semiconducting nanowire growth mechanism, opens door to wider tuning range of temperature and precursor flow rates. His research also reveals unique electronic properties in InAs nanowires grown at different temperatures and orientations.
Researchers at UC-San Diego have discovered that nanowire photodetectors can achieve single-photon sensitivity, making them highly sensitive to light detection. The unique geometry of nanowires traps holes, increasing the time electrons travel down the wire and triggering an increase in current.
Researchers have developed a prototype nanogenerator that produces continuous direct-current electricity by harvesting mechanical energy from environmental sources. The device uses arrays of vertically-aligned zinc oxide nanowires to generate power, which could be used to power nanometer-scale devices such as biosensors and robots.
Scientists at Georgia Tech have found that the electrical conductance of metal nanowires varies due to a pair of atoms, known as a dimer, shuttling back and forth between the bulk electrical leads. This discovery has significant implications for the development of nanotechnology and nanodevices.
A team of UCLA and Caltech chemists has demonstrated a large-scale, ultra-dense memory device using reconfigurable molecular switches. The device stores information using bistable rotaxane molecules, which can be switched at very modest voltages.
Engineers at UC San Diego synthesized p-type zinc oxide (ZnO) nanoscale cylinders, which transport positive charges and could pave the way for an inexpensive new kind of light emitting diode (LED). The development of these semiconducting materials may lead to more efficient LEDs and a wider range of nanodevices.
Scientists at Harvard University have developed nanowire arrays that can detect, stimulate, and inhibit nerve signals along individual axons and dendrites of live mammalian neurons. This breakthrough technology has the potential to revolutionize our understanding of brain activity and signal propagation in neuronal networks.
The new barcode system uses biosensing nanowires with different metal stripes to detect a variety of pathogens. This technology can be used to identify sensitive single and multiplex immunoassays that simulate biowarfare agents, making it easier to detect bio threats in the field.
A Brown University research team has successfully used DNA to assemble and grow complex zinc oxide nanowires, which can create light and generate electricity. The new structures have potential applications in medical diagnostics, security sensors, fiber optical networks, and computer circuits.
NIST researchers have successfully grown gallium nitride alloy nanowires with intense ultraviolet and visible light emission. The wires' high light output and defect-free structure enable reliable room-temperature measurements, while their versatility makes them suitable for various devices, including sensors and transistors.
Researchers at Yale University have developed a standardized method for synthesizing bulk nanowires, allowing for the exploration of next steps in semiconductor miniaturization. The new technology produces ten-times more nanowires than previous methods and sets parameters for standardization.
Scientists have developed nanowire arrays that can detect multiple cancer markers with near-perfect selectivity. These devices can test a mere pinprick of blood in minutes, providing immediate scans and potentially tracking patients' health as treatment progresses.
Researchers at the University of Arizona have developed a theory explaining why nanowires thin away at non-zero temperatures. The discovery reveals that higher surface tensions stabilize the wires, making them suitable for repeated use. Copper is identified as the best metal for creating stable nanowires.
Researchers at Northwestern University create a new method to produce nanowires with controlled gaps, enabling the design of devices for diagnostics and drug discovery. The technique, called on-wire lithography, allows for the fabrication of nanowires with precise electrical measurements on individual molecules.
The NIST design uses a simplified type of contact between the nanowire channel and electrodes, allowing more electrical current to flow. The results suggest that nanowire transistors can improve performance in nanoscale electronics while retaining industry's existing silicon technology infrastructure.
Researchers at the University of Illinois have fabricated superconducting nanowires to measure magnetic fields. The devices exhibit periodic oscillations in resistance when a magnetic field is applied, reflecting wave nature of matter and quantum mechanics.